Most European stock exchanges traded slightly lower today, prolonging fears of trade tensions between the US and China. However, raw material producers, one of the most affected sectors recently, have recovered, having led the gains. The automotive sector has presented a contained valuation, after the recent news. Other more specific news also marked the session. British supermarket chain Sainsbury fell by more than 2 percent after industry data showed sales fell in the last three months while other competitors showed higher sales.